Solution explorer is not showing StyleCop

Installed Microsoft StyleCop 4.4.0.14. It was very well integrated with VS and showing in Solution Explorer when I right click the project or solution.
All of a sudden, while editing & saving the rules, VS crashed and can't see StyleCop in the solution explorer when I right click the solution or project.

I did Repair the StyleCop and also uninstalled/installed StyleCop once again. Still the issue persists.